• modeling of microstructure and mechanical behavior of ultra fine grained aluminum produced by accumulative roll-bonding

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 390
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     mechanical behavior of aa1100 aluminum alloy processed by accumulative roll-bonding was modeled on the basis of a generalized three-dimensional dislocation-density-based two-phase composite model. the simulated yield stress and cell size were compared with the experimental data, obtained by accumulative roll-bonding after several passes. a good agreement between experimental and simulated results was obtained. the results showed that both yield stress and average cell size of the ultra fine grained materials, produced by accumulative roll-bonding, can be simulated using a dislocation-density-based two-phase model. moreover, dynamic recovery in cell interior was governed by cross slip, while climb processes were responsible for that in cell walls.

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